Prune Notes

• Prune Orchard Considerations
• Phellinus wood rot, or “Why do my trees blow up at harvest?”
• Making money at harvest
• What are you doing for your orchard’s financial longevity?
• New Staff Research Associate!

• Save the Dates
• Spring & Early Summer Orchard Consideration
• The Big Three in Prunes
• New UC Davis Prune Varieties Prove Promising

• Bloom Orchard Considerations
• Bloom weather and prune fruit set: what we know so far
• Potassium Management Options in Prunes
• Managing aphids in prune orchards
• New Advisor!
• Save the Dates
• Fungicide Efficacy
• Herbicide Registration Chart

• Save the Dates!

• Fall Prune Orchard Management Considerations

• Canker Management: Spray Now or Pay Later

• Replanting Prunes back into Prunes

• Gear Up, Throttle Down to control pests, spray drift, and costs

• Prune Brownline Alert

• New Orchard Advisor Introduction

• Preharvest and Harvest Prune Orchard Considerations
• Getting the Best Grower Returns at Harvest
• Potassium review
• New Orchard Advisor

• Spring & Early Summer Orchard Considerations
• Weather in 30 days after bloom helps plan thinning and harvest
• Why thin prunes?
• The most important task of the year
• Twelve ways to ruin a prune orchard

• Bloom 2023 Prune Orchard Considerations
• Mechanical Pruning Trial in ‘French’ Prune – Through Year Four
• Bloom weather and prune fruit set: what we know so far.
• Fungicide Efficacy

• Orchard Considerations
• Battle Back Against Cankers Before They Kill Your Trees!
• New prune varieties show promise in reducing fruit drying costs
• New IPM Advisor
• Follow us on Twitter!
• Are your friends getting the newsletter?
• Listen to Growing the Valley Podcast

• UC Davis Breeding Program – 2022 Field Meeting
• Orchard Considerations
• Five Practices to Help Prevent Bacterial Canker
• Late-season Irrigation Management in Prune
• Pre-harvest Management of Brown Rot
• Follow us on Twitter!

• Orchard Considerations
• New UC Davis Prune Varieties prove promising
• Mechanical pruning trial in “French” prune.
• The most important tasks of the year.
• Adela Contreras
• Listen to Growing the Valley podcast!

• Sacramento Valley Tree Crop IPM Webinar
• Walnut Freeze Webinar
• Winter/Spring Sacramento Valley Tree Crop meetings
• Fall Prune Orchard Management Considerations
• Three Steps to Combat Cytospora Canker
• Prune Orchard Investments in a Better Market Year
• New Advisor Introduction
• Central Valley Pistachio News

• Pre-Harvest & Harvest Prune Orchard Considerations, 2021
• Getting the best grower returns at harvest
• Fruit set, 2021. What happened?
• Post-harvest Orchard Clean Up and Pruning – A Pruner’s Pocket Guide
• For a Healthy Orchard Next Spring, Follow Through on
  Late Season Irrigation in Your Prune Orchard
• New Staff Research Associate Introduction
• New Chico State Orchard Researcher Introduction
• 2021 Summer Field Meeting
• Growing the Valley Podcast

• Spring & Early Summer Orchard Considerations
• Checking Cropload and Shaker Thinning Prunes
• Statewide Prune Day Recording
• New Staff Research Associate
• Irrigating with lower quality water? What to consider first
• Tree and Vine Crop Herbicide Chart – Updated (2021)

• Advisor Farewell
• Pre-Harvest Prune Orchard Considerations
• Pre– and Post-Harvest Irrigation Management in Prune
• Prune Harvest Prep: Crop Maturity and Fruit Size Checks

• Long Pruning Webinar - Recorded
• SAVE THE DATE! UC Prune Research Conference
• Fall & Winter Prune Orchard Management Considerations
• Cytospora: A Prune Grower’s Arch Nemesis
• New UC Davis Prune Cultivars Prove Promising

• Spring & Early Summer Orchard Considerations
• Thinning Prunes
• Update on Rootstocks for Prune Production

• Orchard Considerations for Bloom and Beyond
• Young Orchard Weed Management
• New EPA Paraquat Restrictions
• Navigating Irrigation Technology
• Prune Fungicide Efficacy Tables

• Newsletters are going online!
• Post-Harvest Almond & Walnut IPM Workshop
• 2019 IPM Breakfast Meetings
• Fall & Winter Prune Orchard Management Considerations
• Long Pruning for Greater Early Yields
• Cytospora: A year-round fight
• Increase Your Return on Investment with Post-Harvest Weed Scouting

• Butte County Newsletters Going Online!
• IPM Breakfast Meetings
• Pre-Harvest & Harvest Prune Orchard Considerations
• 2019 Canker Review
• Delivering the largest fruit possible this year.

• Newsletters are going online!
• 2019 IPM Breakfast Meetings
• Prune Management Considerations: Spring -- Summer
• The Advantages of Tighter Spacing and Greater Light Interception in California Prune Orchards
• Thinning Prunes
• Updated cost of producing prunes now available

• Newsletters are going online!
• 2019 IPM Breakfast Meetings
• N. Sacramento Valley Prune Day (Feb 22nd)
• Orchard Considerations
• Bloom Disease Treatments and Honey Bee Safety
• Update on Heart Rot in Prunes
• Is This a Year to Skip Thinning?
• Weed Management Considerations When Replanting Trees
• Fungicide Efficacy and Timing Tables for Prune
• Trends in World Prune Markets

• Butte County Newsletters are going online!
• 3rd Annual Post-Harvest IPM Workshop
• Fall & Winter Prune Orchard Management Considerations
• Cytospora Post-Harvest: Cut it out! Protect fresh cuts!
• Pros and Cons of Mechanical Pruning

• Growing the Valley 
• Pre-Harvest & Harvest Prune Orchard Considerations 
• Managing canker diseases in prune orchards 
• Prune Harvest Timing 
• July Leaf Sampling

• South Sacramento Valley Prune Meeting
• Prune Bloom Orchard Management Considerations 
• Dry, Warm, Winter Raises Questions about Irrigation 
• Thinning Prunes 
• Evaluating New Rootstocks: What’s the Latest? 
• New Hazard for Interplanted Orchards 
• Fungicide Efficacy

• Advances in Prune Production
• Fall Prune orchard management considerations following a heavy crop
• Aphid Management Review
• Upcoming IPM Breakfasts
• New Farm Advisor Introduction

• Techniques to Time First Irrigation Dates for Prune 
• Thinning Prunes 
• Prune Orchard Nutrition: Thoughts for 2017 
• Why are Some Prune Trees Yellow in the Spring? The Bicarbonate Blues. 
• Prune Management Considerations: Late Spring through Summer

• Crop Load Adjustment (Thinning Prunes) 
• Options for Bad Weather at Bloom 
• Fungicide Efficacy Tables 
• Bloom Orchard Management Considerations

• Food for Thought When Planting a New Prune Orchard 
• Potted Tree Irrigation After Planting: Getting the First Year Right 
• Fall Prune Orchard Management Considerations Following a Light Crop
• Preliminary Observations for New Prune Rootstocks 
• Prune Industry Summit 2017

• 2015 Field Evaluation of Prune Rootstocks 
• Fungicide Efficacy Tables 
• Nitrogen Management for Prunes 
• Prune Bloom Orchard Management Considerations

• Prune Bloom, 2016 
• Weekly Soil Moisture Loss Reports to Assist With Water Management 
• Pocket Gopher Management: Don’t Wait Too Long! 
• Prune Orchard Management Considerations – Fruit Development to Harvest

• Rain and pruning don’t mix 
• Weed management in prunes 
• Gear Up, Throttle Down for pest control and cost savings 
• A good year for a fall spray in prunes? 
• Fall orchard management considerations

• Predicting an Early ‘French’ Harvest 
• Blue Prune 
• Prune Cracking 
• Pre-Harvest Practices to Consider

• Warm postbloom weather = early harvest? 
• How hot was it at bloom, 2015? 
• Drought strategies for California prune production 
• Crop load assessment and adjustment 
• N budgeting following the 4 Rs 
• Prune Orchard Management Activities May through July

• South Sac Valley Prune Meeting 
• Prune Orchard Activities February to May 
• Heat at Bloom Update ? Honey Bee Safety During Prune Bloom 
• Pesticide Safety Train the Trainer Workshops, March 12th in Davis 
• Fungicide Treatment Timing and Efficacy Tables

• Fall Orchard Considerations 
• Irrigation System Maintenance 
• Cytospora Cankers can Destroy an Orchard 
• Fall Weed Management Considerations in Prune Orchards 
• Potassium Nutrition: Maintaining Optimum Levels by Replacing What You’ve Lost
• Save the Date

• New IPM Advisor Introduction 
• New Farm Advisor Introduction 
•  Advisor Retirement – Thanks! 
• Scouting for Spider Mites in Prunes 
• Deficit Irrigation for French Prune 
• Chill model comparison – Why two models judged last winter very differently
• Nitrogen Management in Orchard Crops -- Red Bluff Meeting July 24th

• Prune aphids in Spring & Summer 
• Irrigating French prune during a drought 
• Efficient nitrogen management in prune production 
• Low chill winter? 
• How hot was it at bloom, 2014?

• Blue prune drop and leaf scorch
• Earlier harvest in 2013?
• 2013:  A tough year for cankers

• Orchard Irrigation 2013
• Prune Tissue Sampling for Leaf Analysis
• How hot was it at bloom, 2013
• Efficient Nitrogen Management in Prune Production

• Heat at Bloom Update
• Nitrogen Management for French Prune
• Brown Rot Blossom/ Twig Blight & Preventing Fungicide Resistance
• New 2012 Prune Cost Study for the Sacramento Valley
• Red Bluff Prune Day Feb 8th --- Yuba City Prune meeting Feb. 27th

• Heat at bloom update
• It's your money
• Mobile Irrigation Lab Service
• Fungicide Timing and Efficacy Tables

• Prune orchard nutrition
• Fall spray for prune aphid management
• Prune out Cytospora cankers to reduce disease
• Two different spots on prune leaves

• Managing fruit brown rot and prune rust.
• Blue prune drop and leaf scorch.
• Bloom time temperatures compared to fruit set in 2011.
• Update on Spotted Winged Drosophila in prunes.
• When will harvest start in 2011?

• What can you do now to produce the largest prunes possible?
• Field sizing French prune
• Managing fruit brown rot in prunes 
• Spotted winged Drosophila: new damaging pest in prunes?

• Prune out Cytospora cankers to reduce disease
• Fall spray for prune aphid management
• Scale pests in prune orchards and keeping a balance of natural enemies
  to control them
• Using a high oil rate before bloom: Why do it?

• Managing prunes through harvest
• Sizing prunes at harvest
• Distinguishing between branch dieback disorders
• New Prune Production Manual Available